1/* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#include "config.h" 32#include "LocalFileSystem.h" 33 34#if ENABLE(FILE_SYSTEM) 35 36#include "AsyncFileSystem.h" 37#include "ErrorCallback.h" 38#include "FileSystemCallback.h" 39#include "FileSystemCallbacks.h" 40#include "PlatformString.h" 41#include "WebFileSystem.h" 42#include "WebFileSystemCallbacksImpl.h" 43#include "WebFrameClient.h" 44#include "WebFrameImpl.h" 45#include "WebWorkerImpl.h" 46#include "WorkerContext.h" 47#include "WorkerThread.h" 48#include <wtf/Threading.h> 49 50using namespace WebKit; 51 52namespace WebCore { 53 54LocalFileSystem& LocalFileSystem::localFileSystem() 55{ 56 AtomicallyInitializedStatic(LocalFileSystem*, localFileSystem = new LocalFileSystem("")); 57 return *localFileSystem; 58} 59 60namespace { 61 62enum CreationFlag { 63 OpenExisting, 64 CreateIfNotPresent 65}; 66 67} // namespace 68 69static void openFileSystemHelper(ScriptExecutionContext* context, AsyncFileSystem::Type type, PassOwnPtr<AsyncFileSystemCallbacks> callbacks, bool synchronous, long long size, CreationFlag create) 70{ 71 ASSERT(context); 72 if (context->isDocument()) { 73 Document* document = static_cast<Document*>(context); 74 WebFrameImpl* webFrame = WebFrameImpl::fromFrame(document->frame()); 75 webFrame->client()->openFileSystem(webFrame, static_cast<WebFileSystem::Type>(type), size, create == CreateIfNotPresent, new WebFileSystemCallbacksImpl(callbacks, type)); 76 } else { 77 WorkerContext* workerContext = static_cast<WorkerContext*>(context); 78 WorkerLoaderProxy* workerLoaderProxy = &workerContext->thread()->workerLoaderProxy(); 79 WebWorkerBase* webWorker = static_cast<WebWorkerBase*>(workerLoaderProxy); 80 webWorker->openFileSystemForWorker(static_cast<WebFileSystem::Type>(type), size, create == CreateIfNotPresent, new WebFileSystemCallbacksImpl(callbacks, type, context, synchronous), synchronous); 81 } 82} 83 84void LocalFileSystem::readFileSystem(ScriptExecutionContext* context, AsyncFileSystem::Type type, PassOwnPtr<AsyncFileSystemCallbacks> callbacks, bool synchronous) 85{ 86 openFileSystemHelper(context, type, callbacks, synchronous, 0, OpenExisting); 87} 88 89void LocalFileSystem::requestFileSystem(ScriptExecutionContext* context, AsyncFileSystem::Type type, long long size, PassOwnPtr<AsyncFileSystemCallbacks> callbacks, bool synchronous) 90{ 91 openFileSystemHelper(context, type, callbacks, synchronous, size, CreateIfNotPresent); 92} 93 94} // namespace WebCore 95 96#endif // ENABLE(FILE_SYSTEM) 97